High Angular Resolution Observations at 7-mm of the Core of the Quadrupolar HH 111/121 Outflow

Abstract

We present sensitive, high angular resolution ($0\text{.}{}^{\prime \prime }05$) VLA continuum observations made at 7 mm of the core of the HH 111/121 quadrupolar outflow. We estimate that at this wavelength the continuum emission is dominated by dust, although a significant free-free contribution ($\sim$30%) is still present. The observed structure is formed by two overlapping, elongated sources approximately perpendicular to each other as viewed from Earth. We interpret this structure as either tracing two circumstellar disks that exist around each of the protostars of the close binary source at the core of this quadrupolar outflow or a disk and a jet perpendicular to it. Both interpretations have advantages and disadvantages, and future high angular resolution spectroscopic millimeter observations are required to favor one of them in a more conclusive way.

arXiv comment12 pages, 3 figures

References in corpus (10)

• Embedded Clusters in Molecular Clouds
• The distance to the Orion Nebula
• Observational Implications of Precessing Protostellar Discs and Jets
• Circumstellar and Circumbinary Disks in Eccentric Stellar Binaries
• {Millimeter Multiplicity in NGC 6334 I and I(N)
• Accretion Disc Evolution in Single and Binary T Tauri Stars
• The Collimated Jet Source in IRAS 16547-4247: Time Variation, Possible Precession, and Upper Limits to the Proper Motions Along the Jet Axis
• A Single Circumstellar Disk in the SVS 13 Close Binary System
• Anatomy of HH 111 from CO observations : a bow shock driven molecular outflow
• Compact Centimeter and Millimeter Sources in NGC 6334 I(N): OB Stars in the Making?

Cited by in corpus (11)

• Rotation and Outflow motions in the very low-mass Class 0 protostellar system HH 211 at subarcsecond resolution
• Rotating molecular outflows: the young T Tauri star in CB26
• Imaging the photoevaporating disk and radio jet of GM Aur
• Angular momentum loss in the envelope-disk transition region of HH 111 protostellar system: evidence for magnetic braking?
• A Change of Rotation Profile in the Envelope in the HH 111 Protostellar System: A Transition to a Disk?
• AMI radio continuum observations of young stellar objects with known outflows
• A Rotating Disk in the HH 111 Protostellar System
• The precession of the HH 111 flow in the infrared
• Searching for Jet Rotation in Class 0/I Sources observed with GEMINI/GNIRS
• Infall and rotation motions in the HH 111 protostellar system: A flattened envelope in transition to a disk?
• High-resolution images of two wiggling stellar jets, MHO 1502 and MHO 2147, obtained with GSAOI+GeMS